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01.06.2009 | Original

Genetic variants in the angiopoietin-2 gene are associated with increased risk of ARDS

verfasst von: Li Su, Rihong Zhai, Chau-Chyun Sheu, Diana C. Gallagher, Michelle N. Gong, Paula Tejera, B. Taylor Thompson, David C. Christiani

Erschienen in: Intensive Care Medicine | Ausgabe 6/2009

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Abstract

Objective

Angiopoietin-2 (Ang-2) is a potent regulator of vascular permeability and inflammation in acute lung injury and acute respiratory distress syndrome (ARDS). Genetic variants in the Ang-2 gene may lead to altered activities of Ang-2 (or ANGPT2) gene. The aim of this study was to assess if genetic variants of Ang-2 are associated with the risk of ARDS.

Design

Unmatched, case-control study nested within a prospectively enrolled cohort.

Setting

Intensive care units (ICU) of an academic medical center.

Patients

About 1,529 critically ill patients with risk factors for ARDS consecutively admitted to the ICUs from 1999 to 2006. Cases were 449 patients who developed ARDS and controls were 1,080 subjects who did not developed ARDS.

Intervention

None.

Measurements and results

Nine tagging SNPs (tSNPs) spanning the entire Ang-2 gene were genotyped in all patients. The results were analyzed using logistic regression models, adjusting for covariates. The variant T allele of one tSNP (rs2515475) was significantly associated with increased risk of ARDS (OR_adjusted = 1.28; P = 0.042). This association was stronger in subjects with extrapulmonary injuries (OR_adjusted = 1.79; P = 0.004). Haplotype TT in block 2 containing the T allele of the rs2515475 was also significantly associated with higher risk of ARDS (OR_adjusted = 1.42; P = 0.009), particularly in subjects with extrapulmonary injuries (OR_adjusted = 1.90; P = 0.004).

Conclusion

Common genetic variation in the Ang-2 gene may be associated with increased risk of ARDS, especially among patients with extrapulmonary injuries.

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Titel: Genetic variants in the angiopoietin-2 gene are associated with increased risk of ARDS
verfasst von: Li Su
Rihong Zhai
Chau-Chyun Sheu
Diana C. Gallagher
Michelle N. Gong
Paula Tejera
B. Taylor Thompson
David C. Christiani
Publikationsdatum: 01.06.2009
Verlag: Springer-Verlag
Erschienen in: Intensive Care Medicine / Ausgabe 6/2009
Print ISSN: 0342-4642
Elektronische ISSN: 1432-1238
DOI: https://doi.org/10.1007/s00134-009-1413-8

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Genetic variants in the angiopoietin-2 gene are associated with increased risk of ARDS

Abstract

Objective

Design

Setting

Patients

Intervention

Measurements and results

Conclusion

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Springer Medizin

Abstract

Objective

Design

Setting

Patients

Intervention

Measurements and results

Conclusion

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